Answer the following statements true (T) or false (F)
1. The trachea connects the larynx to the primary bronchi.
2. O-shaped rings of cartilage help keep the trachea open even when pressure is applied to it.
3. Complete tracheal obstruction causes death in a matter of minutes.
4. The trachea, primary bronchi, and secondary bronchi all contain cartilage in their walls to help keep them open.
5. The smooth muscle contraction that occurs in an asthma attack most seriously affects the secondary bronchi.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. FALSE
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What term is used to refer to bending at the elbow?
A. Flexión of the arm B. Flexión of the forearm C. Extension of the arm D. Adduction of the forearm
Briefly describe the structure and function of fontanelles.
What will be an ideal response?
All of the following are correct regarding DNA except
A) it contains deoxyribose sugar. B) molecular shape varies with hydrogen bonding along the length of the strand. C) the nitrogenous base is made of adenine, guanine, cytosine, and thymine. D) it stores genetic information. E) it contains a double helix.
30. Fran has a microbial infection attacking his brain. Which cell type would you expect to proliferate and be most active during this time?
A. astrocytes B. microglial cells C. oligodendrocytes D. ependymal cells E. Schwann cells